ABSTRACTS OF PAPERS 159 



A CLASSIFWATION OF AQUEOUS HABITATS 

 BY MARJORIE O'CONNELL 



(Abstract) 



All attempt will be made to classify aqueous habitats on the basis of 

 salinity. A table of salinity ranges for the various tyi)es will be given. \Aitli 

 a discussion and restriction of the terms fresh, brackish, and marine waters. 

 The faunal significance of these habitats will be considered and several illus- 

 trations given, with especial attention to the relation between salinit.v and 

 faunas. The purpose of the study is to obtain a faunal standard for each 

 habitat by which faunas of former periods can be judged and interpreted in 

 terms of habitat. 



The final paper of the program was g-iven by the author, who illus- 

 trated it by drawings. 



NEW SPECIES OF FICUS FROM THE INTEROLACIAL DEPOSITS OF THE 

 KOOTENAY VALLEY, BRITISH COLUMBIA 



BY ARTHUR HOLLICK 



{Ahstract) 



Fossil plants, if their generic relationships to living plants can be satis- 

 factorily determined, are generally regarded as excellent climatic indices. 

 Remains of a species of Ficiis, for example, in strata of any geologic age would 

 at once be recognized as good evidence that a tropical or subtropical climate 

 must have prevailed in the locality where the strata are, at the time when 

 they were laid down. The generic identiflcationi of fossil leaves can not al- 

 ways be relied on as correct ; but well preserved remains of fruit are generally 

 very satisfactory subjects for determination, especially if the generic char- 

 acters are peculiar or striking. Recently a study was made of a collection of 

 fossil plants, stems, leaves, and fruit from interglacial deposits in the Kootenay 

 Valley, British Columbia, sent for examination and report by the Director of 

 the Canada Geological Survey. 



At 4.30 p. 111. the Society adjourned. 



